199878860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{30941}}^1$

素因数の和:30986

約数の個数: 48

約数和(自身を含む): 467843040

約数和(自身を除く): 267964180

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 30941, 61882, 123764, 154705, 309410, 525997, 587879, 618820, 1051994, 1175758, 2103988, 2351516, 2629985, 2939395, 5259970, 5878790, 9993943, 10519940, 11757580, 19987886, 39975772, 49969715, 99939430, 199878860]

約数ペア:

[(1, 199878860), (2, 99939430), (4, 49969715), (5, 39975772), (10, 19987886), (17, 11757580), (19, 10519940), (20, 9993943), (34, 5878790), (38, 5259970), (68, 2939395), (76, 2629985), (85, 2351516), (95, 2103988), (170, 1175758), (190, 1051994), (323, 618820), (340, 587879), (380, 525997), (646, 309410), (1292, 154705), (1615, 123764), (3230, 61882), (6460, 30941)]